CN202660534U - Low-NOX fluid slagging pulverized coal combusting device with tertiary swirl air - Google Patents

Low-NOX fluid slagging pulverized coal combusting device with tertiary swirl air Download PDF

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Publication number
CN202660534U
CN202660534U CN 201220146618 CN201220146618U CN202660534U CN 202660534 U CN202660534 U CN 202660534U CN 201220146618 CN201220146618 CN 201220146618 CN 201220146618 U CN201220146618 U CN 201220146618U CN 202660534 U CN202660534 U CN 202660534U
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China
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air
tertiary
low
coal
combustion
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CN 201220146618
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Chinese (zh)
Inventor
潘玉明
贾明生
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上海题桥能源科技发展有限公司
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Priority to CN201110265416A priority Critical patent/CN102305397A/en
Priority to CN201110265416.2 priority
Application filed by 上海题桥能源科技发展有限公司 filed Critical 上海题桥能源科技发展有限公司
Priority to CN 201220146618 priority patent/CN202660534U/en
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Publication of CN202660534U publication Critical patent/CN202660534U/en

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Abstract

The utility model provides a low-NOX liquid slagging pulverized coal combusting device with tertiary swirl air. The low NOX liquid slagging pulverized coal combusting device mainly comprises a burner assembly and a combustion chamber assembly. The inside of the burner assembly is of a conical horn mouth shape; a primary air/pulverized coal nozzle is arranged on the conical top end of the horn mouth; a tertiary air outlet is arranged in the middle of the horn mouth; a secondary air outlet is arranged at the conical bottom of the horn mouth; the primary air, the secondary air and the tertiary air are rotary feed air with same direction; according to the requirements of combustion conditions, the combustion chamber assembly can be designed as a necking combustion chamber with a cylindrical rear end as well as a slag collecting screen and a slag groove at the front end; and the combustion chamber assembly can also be arranged into a simple cylindrical structure only. The low-NOX liquid slagging pulverized coal combusting device has the advantages of large turbulence of pulverized coal/air flow, uniformity for mixing, easiness for ignition, low NOX emission quantity, high slag collecting rate, high burnout rate, high flame cleanliness, strong adaptability for different coal types and load change, obvious energy-saving and emission-reducing effects, and capability of realizing staged combustion and air combustion in the combusting device and generating a larger recirculation zone in the combustion chamber.

Description

A kind of low NO with three Whirl deposite tanksXLiquid deslagging coal-dust combustion device

Technical field

The utility model is related to a kind of low NO with three Whirl deposite tanksXLiquid deslagging coal-dust combustion device, it is adaptable to 6~35 tons of steam, hot-water boilers, the various industrial productions such as stove, forging, steel-making belong to coal burner technical field to the burner of thermal demand.

Background technology

Traditional liquid deslagging vortex burner, its Secondary Air is introduced tangentially into from the side of burner, this mode causes the Severe distortion of swirling recirculation flow flow and temperature fields in combustion chamber, shorten the burning residence time of coal dust in a combustion chamber, the centrifugation of lime-ash is reduced, causes coal dust and lime-ash short circuit effusion combustion chamber.Due to this birth defects, what cause measure no matter taken, its retention efficiency is all without too high, typically it is not above 80%, simultaneously because overfiren air port is located among sidewall of combustion chamber slag flow field, although Secondary Air is generally all preheating to 200 DEG C~400 DEG C, but the temperature for being up to more than 1500 DEG C with liquid slag is compared, it is still the air-flow of very " cold ", it is high (up to more than 80m/s) plus its flow velocity, its cooling effect to melt cinder is strong, it is prone to slagging scorification accident, the slagging scorification of air port one, air quantity and wind direction light then that change Secondary Air, so that combustion instability, heavy then blocking air port is until blowing out.

In order to solve problem above, applicant applied for entitled on May 19th, 2010《Low NOXDry and wet deslagging dual-swirl coal-dust combustion device》Utility model patent (authorize Publication No. CN201772450U), it is tangential or cut tradition to air intake that the equipment has abandoned liquid deslagging vortex burner side completely, there is no any air port or charging aperture on the wall of side, whole side wall is a continuous whole face of cylinder, and by burner inner wall the position for being introduced tangentially into Secondary Air of traditional liquid deslagging vortex burner is focused on into the front end of burner assembly and the rear end of burning chamber assembly is connected end.This is attached on the wall of side for coal dust and melt cinder carries out adhesion combustion and gradually provides perfect flow field to slag notch movement in gravity and air-flow power effect lower edge helix, and this point is also one of the equipment and traditional fundamental difference of liquid deslagging vortex burner simultaneously.The First air and Secondary Air of this coal burner employ the combustion system of double-cyclone, effect is ideal in the application of below 6t/h small-sized industrial boilers, but when being applied to boiler output more than 6t/h, because First air/coal dust jet opening distance Secondary Air air inlet is farther out, such as combustion adjustment is improper, may cause problems with occur:1) coal dust is mixed with air insufficient strength, light a fire more difficult, combustion intensity and combustion efficiency be not good;2) coal dust firing is not abundant enough, it is difficult to effectively using the bags, and effectively organizes coal dust firing.

Utility model content

It is good that the purpose of this utility model is to provide a kind of combustion efficiency, NOXDischarge capacity is low, and retention efficiency is high, and flame cleanliness factor is high, can guarantee that long-term safety stable operation, makes it possible to the coal powder burner being widely applied in various Industrial Boilers.

In order to achieve the above object, the technical scheme is that there is provided a kind of low NO with three Whirl deposite tanksXLiquid deslagging coal-dust combustion device, including burner assembly and burning chamber assembly, the front end of burner assembly is connected with the rear end for the chamber assembly that burns, the burner assembly includes First air/coal dust jet pipe, the guide rod of First air/coal dust shower nozzle leads to inside the pipe from the anterior outlet of First air/coal dust jet pipe, it is characterised in that:The tapered bell shape in inner side of the burner assembly, First air air outlet is located at bell-mouthed vertex of a cone end, and tertiary air air outlet is located at bell-mouthed middle part, and Secondary Air air outlet is located at bell-mouthed cone bottom.

Preferably, two-stage air inlet is provided with the outside of the burner assembly, Secondary Air air intake passage and tertiary air air intake passage are followed successively by since burner front end, the Secondary Air air intake passage and tertiary air air intake passage are respectively mainly by the side wall of burner assembly, inlet end face, air compartment baffle is formed, , Secondary Air air intake passage and tertiary air air intake passage share a wind pipeline or are individually separated respectively matching somebody with somebody an air blower and correspond to a wind pipeline respectively as needed, if Secondary Air air intake passage and tertiary air air intake passage share a wind pipeline, then lead to wind passage regulation dividing plate to control the air flow rate proportioning of the two, wind passage regulation dividing plate is hinged with manual adjusting screw rod, Secondary Air air intake passage and tertiary air air intake passage are connected with Secondary Air air outlet and tertiary air air outlet respectively.

Preferably, Secondary Air air outlet and tertiary air air outlet are circumferentially evenly arranged Secondary Air swirl vane and tertiary air swirl vane respectively.

Preferably, the guide rod or cone nozzle position of First air/coal dust shower nozzle are equipped with First air swirl vane.

Preferably, the burning chamber assembly is arranged to simple cylindric combustion chamber, or it is cylindrical shape to be arranged to rear portion, front portion is with the shrink mouth shape combustion chamber for catching slag screen and slag chute, working lining is provided with the inwall of cylindric combustion chamber or shrink mouth shape combustion chamber, working lining includes ambiguity refractory masses and cylindricality heat-conducting metal anchoring piece, cylindricality heat-conducting metal anchoring piece is connected within ambiguity refractory masses and closely with the inner tube wall of combustion chamber, working lining is wrapped with cooling water external member, the cooling water external member includes cooling water inner sleeve and cooling water overcoat, cooling water inlet pipe and cooling water outlet pipe are provided with set outside cooling water, there are support foreleg and support back leg in the lower disposed of the burning chamber assembly, the inclination angle of the burning chamber assembly is determined by adjusting support foreleg and supporting the difference in height of back leg.

Preferably, the inclination angle is between 5 °~60 °.

Preferably, the tapered bell shape in inside of the burner assembly, cone-apex angle is 40 °~150 °, castable refractory is partially covered between the Secondary Air air outlet and the tertiary air air outlet, First air air outlet is located at bell-mouthed vertex of a cone end, the tertiary air air outlet is located at bell-mouthed middle part, and the Secondary Air air outlet is located at bell-mouthed cone bottom.

Preferably, the tertiary air air outlet is located between the First air/coal dust shower nozzle and the Secondary Air air outlet, and the eddy flow direction by the First air, Secondary Air, tertiary air of the entrance of First air air outlet, Secondary Air air outlet and tertiary air air outlet is consistent respectively.

Preferably, the First air or an air blower is shared individually with a high pressure positive blower or with the Secondary Air and the tertiary air.

Preferably, the wind come out from the Secondary Air air inlet and the tertiary air air outlet is all rotary wind, wherein, the axial inclination of the swirl vane of Secondary Air air outlet is 2 °~15 °, radial direction corner cut is 20 °~90 °, the axial inclination of the swirl vane of tertiary air air outlet is 10 °~30 °, and radial direction corner cut is 60 °~90 °.

Preferably, the quantity of the First air swirl vane is 3~12, and length is 100~400mm, is highly 50~120mm, and thickness is 2~5mm, and inclination angle is 5 °~35 °.

Preferably, the quantity of described Secondary Air swirl vane is 15~40, and length is 200~500mm, is highly 60~200mm, and thickness is 5~10mm.

Preferably, the quantity of the tertiary air swirl vane is 12~25, and length is 60~250mm, is highly 20~120mm, and thickness is 3~8mm.

The position for being introduced tangentially into Secondary Air of traditional liquid deslagging vortex burner is focused on to the front end of burner assembly by burner inner wall, it is connected with the rear end of burner assembly, add tertiary air simultaneously, more reasonable structure, this arrangement effectively solves the problem of being likely to occur in patents mentioned above CN201772450U, is very beneficial for strengthening the intensity that coal dust is mixed with air, reduction igniting difficulty, the fractional combustion of coal dust is realized, the bags is made full use of, combustion efficiency is improved.In the utility model, after coal dust is by First air concentrated phase powder feeding, pulverized coal air flow passes through First air swirl vane, flow through after coal dust shower nozzle (bluff body), produce that one larger behind bluff body and stable recirculating zone, and then enable coal dust more uniform when being mixed with tertiary air, coal dust separates out moisture and volatile matter under certain hot environment, coal dust volatile matter ignition first, during coal dust is constantly rotationally advancing by the rotation conveying effect of tertiary air, volatile matter gradually burns completely, as ignition temperature is persistently raised, when coal dust marches to the i.e. Secondary Air air inlet of connecting end surface of burner assembly and burning chamber assembly, by the stronger cyclonic action of Secondary Air, breeze airflow rotation is stronger, this creates advantage for coal dust adhesion combustion, now coal dust reaches the temperature of fixed carbon burning, most of adherent burning of coal dust and after-flame, and then liquid slag is formed in high temperature environments, because of deadweight and viscous effect, the liquid slag speed of service is very low, very big relative velocity is formed with the flow at high speed of Secondary Air, make that molten slag is adherent to be moved down, along the slag chute discharge burner of setting in the presence of slag screen is caught.

The utility model is burnt using the coaxial sectional control with three Whirl deposite tanks, one, two, the direction of rotation of tertiary air is identical, weak rotation high pressure First air pulverized coal conveying, stronger tertiary air eddy flow promotes the mixing of coal dust and air and provides the initiation combustion condition of coal dust, strong swirl secondary air is then that late combustion coal dust and being sufficiently mixed for air provide safeguard, and ensure coal dust after-flame, make deslagging smooth, such a arrangement form with three Whirl deposite tanks can be such that the little particle coal dust of 80~300 mesh is mixed with hot-air fully, its burning velocity is fast, flame cleanliness factor is high, burn-off rate is up to 99.5%, liquid retention efficiency is higher than more than 90%, dust concentration in reduction smoke evacuation, reduce smoke discharge amount.

The utility model makes coal powder/air mixed gas in the burning of burner internal classification, combustion with meagre oxygen, so as to produce reduction reaction, reduces nitrogen oxides:

CO+NO→CO2+N2

H2+NO→N2+H2O

CHi+NO→HCN+O

HCN+NO→N2... (excess air coefficient α < 1)

NO+C→N2+CO

The product of thing can be seen that from the reactions above, NOXGeneration be suppressed, reach clean combustion, NOXThe effect of emission reduction.

The utility model can use remote high pressure First air concentrated phase powder feeding according to actual needs, and two, tertiary air quantity can be adjusted very easily, so that the coal dust of this remote concentrated phase automatic powder feeding system mixes more uniform with air, easily Load adjustment size, can arbitrarily it be changed at full capacity more than 40% load range without reducing combustion position, can burn a variety of different coals simultaneously, with adaptability widely.Further, since the coal powder density entrained by First air is high, easily igniting after coal dust is well mixed with tertiary air, burning is strong.

The utility model can carry out different arrangements according to actual needs, when for coal powder point apart from boiler farther out when, the remote First air concentrated phase powder feeding of separate high pressure blower fan can be used;When supplying coal powder point nearer with boiler, the method for a Fans can be shared using the First air and two, tertiary air of pulverized coal conveying, so as to realize the flexible arrangement of boiler.

As needed, if two, tertiary air needs to share an air blower and a total air channel, Secondary Air and tertiary air can adjust dividing plate to control the proportioning of the two air quantity by various various forms of wind passages.Wind passage regulation dividing plate is hinged with manual adjusting screw rod, and Secondary Air air intake passage and tertiary air air intake passage are connected with Secondary Air air outlet and tertiary air air outlet respectively.

In summary, the utility model has coal powder/air flow disturbance big, is well mixed, and igniting is easy, NOXDischarge capacity is low, and retention efficiency is high, and burn-off rate is high, and flame cleanliness factor is high, and the ability for adapting to Coal rank and load change is strong, many advantages, such as effects of energy saving and emission reduction is notable.At present, national 6~35 tons of steam used, hot-water boiler, up to a million of stove, are transformed according to the technical solution of the utility model, it will produce huge energy-saving and emission-reduction social benefit and surprising energysaving effectiveness.

Brief description of the drawings

A kind of low NO with three Whirl deposite tanks that Fig. 1 provides for the utility modelXThe structural representation of liquid deslagging coal-dust combustion device;

The direction view (burner assembly part) that Fig. 2 is A-A in Fig. 1;

Fig. 3 is First air/coal dust jet pipe schematic diagram;

Fig. 4 is tertiary air swirl vane phantom;

Fig. 5 is the expanded view of tertiary air swirl vane;

Another low NO with three Whirl deposite tanks that Fig. 6 provides for the utility modelXThe structural representation of liquid deslagging coal-dust combustion device.

Embodiment

To become apparent the utility model, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.

Embodiment one

Referring to Fig. 1, a kind of low NO with tertiary air provided for the present inventionXLiquid deslagging coal-dust combustion device, the present embodiment includes burner assembly 5 and burning chamber assembly 9, the front end of burner assembly 5 is connected with the rear end for the chamber assembly 9 that burns, the rear end of burner assembly 5 connects First air/coal dust jet pipe 1, and the guide rod of First air/coal dust shower nozzle 3 leads to inside the pipe from the anterior outlet of First air/coal dust jet pipe 1.Fire inspection device 29, torch oil gun 2 and flame-observing hole 16 is distributed with the inlet end face of burner assembly 9, torch oil gun 2 is extended outside First air/coal dust shower nozzle 3.The outside of burner assembly 5 is equipped with Secondary Air air intake passage 19 and tertiary air air intake passage 17, Secondary Air air intake passage 19 and tertiary air air intake passage 17 are formed by the side wall of burner assembly, inlet end face, air compartment baffle respectively, the end being all connected installed in the front end of burner assembly 5 with the rear end for the chamber assembly 9 that burns.Secondary Air air intake passage 19 and tertiary air air intake passage 17 can share a total air channel as needed, can also be individually separated respectively with an air blower.When sharing a total air channel, the two can lead to wind passage regulation dividing plate 18 to control the air quantity ratio of the two, wind passage regulation dividing plate 18 is hinged with manual adjusting screw rod 20, and Secondary Air air intake passage 19 and tertiary air air intake passage 17 are connected with Secondary Air air outlet 7 and tertiary air air outlet 4 respectively.The tapered bell shape in inner side of burner assembly 5, cone-apex angle is 40 °~150 °, and being partially covered with castable refractory, burner assembly 5 and burning chamber assembly 9 between Secondary Air air outlet 7 and tertiary air air outlet 4 is respectively arranged with hanger 6.The chamber assembly 9 that burns includes Inner Wall of Combustion Chamber working lining 10, and working lining 10 is made up of ambiguity refractory masses 12 and cylindricality heat-conducting metal anchoring piece 11, and the latter is connected within the former and closely with inner tube wall in combustion chamber.Working lining 10 is wrapped with cooling water external member, cooling water external member includes cooling water inner sleeve 13 and cooling water overcoat 14, cooling water inlet pipe 23 and cooling water outlet pipe 8 are provided with cooling water overcoat 14, the front end of burning chamber assembly 9 is provided with bocca 26, catches slag screen 24 and slag chute 25, the front end of burner assembly 5 is connected with the rear end of burner assembly 9 using flange, the lower disposed of burning chamber assembly has burner to support foreleg 22 and support back leg 21, the optimum inclination angle of burner can be determined by adjusting the difference in height of the front and rear leg of support, typically between 5 °~60 °.

As shown in Figure 2, combustion chamber is equipped with Secondary Air air intake passage 19 and tertiary air air intake passage 17, Secondary Air and tertiary air lead to wind passage regulation dividing plate 18 to control the air quantity ratio of the two, Secondary Air air intake passage 19 and tertiary air air intake passage 17 are connected with Secondary Air air outlet 7 and tertiary air air outlet 4 respectively, Secondary Air air outlet 7 and tertiary air air outlet 4 are circumferentially evenly arranged Secondary Air swirl vane 27 and tertiary air swirl vane 28 respectively, the wind come out from described Secondary Air air outlet 7 and tertiary air air outlet 4 is all rotary wind, wherein the axial inclination of swirl vane 27 of Secondary Air air outlet 7 is 2 °~15 °, radial direction corner cut is 20 °~90 °, the axial inclination of swirl vane 28 of tertiary air air outlet 4 is 10 °~30 °, radial direction corner cut is 60 °~90 °.The inlet end face of burner assembly is disposed with fire inspection device 29, torch oil gun 16 and flame-observing hole 2.In a change case of the present embodiment, the Secondary Air swirl vane 27 and tertiary air swirl vane 28 can be omitted.

As shown in Figure 3, described First air coal dust jet pipe 1 is anterior to be equipped with First air/coal dust shower nozzle 3, the guide rod of First air/coal dust shower nozzle 3 leads to inside the pipe from the anterior outlet of First air/coal pipe 1, and a circle First air swirl vane 15 is disposed with First air/coal dust Conic nozzle 3.The quantity of First air swirl vane 15 is 3~12, and length is 100~400mm, is highly 50~120mm, and thickness is 2~5mm, and inclination angle is 5 °~35 °.In a change case of the present embodiment, the first wind swirl vane can be omitted.

As shown in Figures 4 and 5, the quantity of tertiary air swirl vane 28 is 12~25, and length is 60~250mm, is highly 20~120mm, and thickness is 3~8mm.

The quantity of Secondary Air swirl vane 27 is 15~40, and length is 200~500mm, is highly 60~200mm, and thickness is 5~10mm.

Burning chamber assembly is designed to that front end band catches the shrink mouth shape structure of slag screen, slag chute and bocca by the embodiment, can effectively improve retention efficiency, and make it that burner deslagging is smooth.

Embodiment two

Referring to Fig. 6, another provided for the present invention has the low NO of three Whirl deposite tanksXThe structural representation of liquid deslagging coal-dust combustion device, the present embodiment includes burner assembly 5 and burning chamber assembly 9, the rear end of burner assembly 5 connects First air/coal dust jet pipe 1, the guide rod of First air/coal dust shower nozzle 3 leads to inside the pipe from the anterior outlet of First air/coal dust jet pipe 1, the outside of burner assembly 5 is equipped with Secondary Air air intake passage 19 and tertiary air air intake passage 17, the two is connected with Secondary Air air outlet 7 and tertiary air air outlet 4 respectively, the tapered bell shape in inner side of burner assembly 5, cone-apex angle is 40 °~150 °, castable refractory is partially covered between Secondary Air air outlet 7 and tertiary air air outlet 4, hanger 6 is respectively arranged with burner assembly 5 and burning chamber assembly 9.Burning chamber assembly 9 is arranged to tubular combustion chamber, including Inner Wall of Combustion Chamber working lining 10, working lining 10 is made up of ambiguity refractory masses 12 and cylindricality heat-conducting metal anchoring piece 11, the latter is connected within the former and closely with inner tube wall in combustion chamber, working lining 10, which is wrapped with cooling water external member, includes cooling water inner sleeve 13 and cooling water overcoat 14, and cooling water inlet pipe 23 and cooling water outlet pipe 8 are provided with cooling water overcoat 14.The front end of combustion chamber, which is not set, catches slag screen and slag chute, and the lower disposed of burning chamber assembly has leg 22 and 21 before and after burner support, the optimum inclination angle of burner can be determined by the difference in height of leg before and after adjustment support, typically between 5 °~60 °.

Burning chamber assembly is designed to that, without the simple cylinder-like structure for catching slag screen and slag chute, burner assembly part is identical with embodiment one by the present embodiment, reference can be made to Fig. 2 is to Fig. 5 parts and its explanation.The combustion chamber placement mode of the present embodiment can the larger recirculating zone of producing ratio in heart district domain in a combustion chamber, deslagging is more smooth, coal powder/air mixed gas is burnt in burner internal classification, combustion with meagre oxygen, so as to produce reduction reaction, suppresses NOXGeneration, reach clean combustion, obtain NOXThe effect of emission reduction, while the characteristics of having simple and practical, can effectively reduce combustion apparatus cost.

Claims (16)

1. a kind of low NO with three Whirl deposite tanksXLiquid deslagging coal-dust combustion device, including burner assembly (5) and burning chamber assembly (9), the front end of burner assembly (5) is connected with the rear end of burning chamber assembly (9), the burner assembly (5) includes First air/coal dust jet pipe (1), the guide rod of First air/coal dust shower nozzle (3) leads to inside the pipe from the anterior outlet of First air/coal dust jet pipe (1), it is characterised in that:The tapered bell shape in inner side of the burner assembly (5), First air air outlet is located at bell-mouthed vertex of a cone end, tertiary air air outlet (4) is located at bell-mouthed middle part, and Secondary Air air outlet (7) is located at bell-mouthed cone bottom.
2. there is the low NO of three Whirl deposite tanks as claimed in claim 1XLiquid deslagging coal-dust combustion device, it is characterised in that:Two-stage air inlet is provided with the outside of the burner assembly (5), Secondary Air air intake passage (19) and tertiary air air intake passage (17) are followed successively by since burner front end, the Secondary Air air intake passage (19) and tertiary air air intake passage (17) are respectively by the side wall of burner assembly, inlet end face, air compartment baffle is formed, Secondary Air air intake passage (19) and tertiary air air intake passage (17) share a wind pipeline or are individually separated respectively matching somebody with somebody an air blower and correspond to a wind pipeline respectively as needed, if Secondary Air air intake passage (19) and tertiary air air intake passage (17) share a wind pipeline, then lead to wind passage regulation dividing plate (18) to control the air flow rate proportioning of the two, wind passage regulation dividing plate (18) is hinged with manual adjusting screw rod (20), Secondary Air air intake passage (19) and tertiary air air intake passage (17) are connected with Secondary Air air outlet (7) and tertiary air air outlet (4) respectively.
3. there is the low NO of three Whirl deposite tanks as claimed in claim 1XLiquid deslagging coal-dust combustion device, it is characterised in that:Secondary Air air outlet (7) and tertiary air air outlet (4) are equipped with swirl-flow devices, i.e., be circumferentially evenly arranged Secondary Air swirl vane (27) and tertiary air swirl vane (28) respectively.
4. there is the low NO of three Whirl deposite tanks as claimed any one in claims 1 to 3XLiquid deslagging coal-dust combustion device, it is characterised in that:The guide rod or cone nozzle position of First air/coal dust shower nozzle (3) are equipped with First air swirl vane (15).
5. there is the low NO of three Whirl deposite tanks as claimed in claim 4XLiquid deslagging coal-dust combustion device, it is characterised in that:The tertiary air air outlet (4) is located at the First air/between coal dust shower nozzle (3) and the Secondary Air air outlet (7), the First air that is come out respectively by First air air outlet, Secondary Air air outlet (7) and tertiary air air outlet (4), Secondary Air, tertiary air eddy flow direction it is consistent.
6. there is the low NO of three Whirl deposite tanks as claimed in claim 1XLiquid deslagging coal-dust combustion device, it is characterised in that:The burning chamber assembly (9) is arranged to simple cylindric combustion chamber, or be arranged to rear portion be it is cylindric, anterior be with the shrink mouth shape combustion chamber for catching slag screen (24) and slag chute (25).
7. the low NO with three Whirl deposite tanks as described in claim 1 or 6XLiquid deslagging coal-dust combustion device, it is characterised in that:Working lining (10) is provided with the inwall of combustion chamber, working lining (10) includes ambiguity refractory masses (12) and cylindricality heat-conducting metal anchoring piece (11), and cylindricality heat-conducting metal anchoring piece (11) is connected within ambiguity refractory masses (12) and closely with the inner tube wall of combustion chamber.
8. there is the low NO of three Whirl deposite tanks as claimed in claim 7XLiquid deslagging coal-dust combustion device, it is characterised in that:Working lining (10) is wrapped with cooling water external member, the cooling water external member includes cooling water inner sleeve (13) and cooling water overcoat (14), and cooling water inlet pipe (23) and cooling water outlet pipe (8) are provided with cooling water overcoat (14).
9. there is the low NO of three Whirl deposite tanks as claimed in claim 1XLiquid deslagging coal-dust combustion device, it is characterised in that:The inclination angle of the burning chamber assembly (9) is between 5 °~60 °.
10. there is the low NO of three Whirl deposite tanks as claimed in claim 1XLiquid deslagging coal-dust combustion device, it is characterised in that:The bell-mouthed cone-apex angle of inner side taper of the burner assembly (5) is 40 °~150 °.
11. a kind of low NO with three Whirl deposite tanks as claimed in claim 1XLiquid deslagging coal-dust combustion device, it is characterised in that:Castable refractory is partially covered between the Secondary Air air outlet (7) and the tertiary air air outlet (4).
12. there is the low NO of three Whirl deposite tanks as claimed in claim 5XLiquid deslagging coal-dust combustion device, it is characterised in that:The First air shares an air blower individually with a high pressure positive blower or with the Secondary Air and the tertiary air.
13. there is the low NO of three Whirl deposite tanks as claimed in claim 3XLiquid deslagging coal-dust combustion device, it is characterised in that:The wind (4) come out from the Secondary Air air outlet (7) and the tertiary air air outlet is all rotary wind, wherein, the axial inclination of the swirl vane of Secondary Air air outlet (7) is 2 °~15 °, radial direction corner cut is 20 °~90 °, the axial inclination of the swirl vane of tertiary air air outlet (4) is 10 °~30 °, and radial direction corner cut is 60 °~90 °.
14. there is the low NO of three Whirl deposite tanks as claimed in claim 4XLiquid deslagging coal-dust combustion device, it is characterised in that:The quantity of the First air swirl vane (15) is 3~12, and length is 100~400mm, is highly 50~120mm, and thickness is 2~5mm, and inclination angle is 5 °~35 °.
15. there is the low NO of three Whirl deposite tanks as claimed in claim 3XLiquid deslagging coal-dust combustion device, it is characterised in that:The quantity of described Secondary Air swirl vane (27) is 15~40, and length is 200~500mm, is highly 60~200mm, and thickness is 5~10mm.
16. there is the low NO of three Whirl deposite tanks as claimed in claim 3XLiquid deslagging coal-dust combustion device, it is characterised in that:The quantity of the tertiary air swirl vane (28) is 12~25, and length is 60~250mm, is highly 20~120mm, and thickness is 3~8mm. 
CN 201220146618 2011-09-08 2012-04-09 Low-NOX fluid slagging pulverized coal combusting device with tertiary swirl air CN202660534U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201110265416A CN102305397A (en) 2011-09-08 2011-09-08 Low-NOX (nitrogen oxides) slag-tap pulverized coal combustion device with triple rotational air
CN201110265416.2 2011-09-08
CN 201220146618 CN202660534U (en) 2011-09-08 2012-04-09 Low-NOX fluid slagging pulverized coal combusting device with tertiary swirl air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220146618 CN202660534U (en) 2011-09-08 2012-04-09 Low-NOX fluid slagging pulverized coal combusting device with tertiary swirl air

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Publication Number Publication Date
CN202660534U true CN202660534U (en) 2013-01-09

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Family Applications (5)

Application Number Title Priority Date Filing Date
CN201110265416A CN102305397A (en) 2011-09-08 2011-09-08 Low-NOX (nitrogen oxides) slag-tap pulverized coal combustion device with triple rotational air
CN2012101018573A CN102661605A (en) 2011-09-08 2012-04-09 Low-NOX liquid slag removal coal dust combustion apparatus possessing triple swirling flow wind
CN201210102414.6A CN102628589B (en) 2011-09-08 2012-04-09 High-temperature and low-NOX combustion method and device for pulverized coal
CN 201220147242 CN202675267U (en) 2011-09-08 2012-04-09 Coal powder combustion device with high temperature but low NOx
CN 201220146618 CN202660534U (en) 2011-09-08 2012-04-09 Low-NOX fluid slagging pulverized coal combusting device with tertiary swirl air

Family Applications Before (4)

Application Number Title Priority Date Filing Date
CN201110265416A CN102305397A (en) 2011-09-08 2011-09-08 Low-NOX (nitrogen oxides) slag-tap pulverized coal combustion device with triple rotational air
CN2012101018573A CN102661605A (en) 2011-09-08 2012-04-09 Low-NOX liquid slag removal coal dust combustion apparatus possessing triple swirling flow wind
CN201210102414.6A CN102628589B (en) 2011-09-08 2012-04-09 High-temperature and low-NOX combustion method and device for pulverized coal
CN 201220147242 CN202675267U (en) 2011-09-08 2012-04-09 Coal powder combustion device with high temperature but low NOx

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CN (5) CN102305397A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661605A (en) * 2011-09-08 2012-09-12 上海题桥能源科技发展有限公司 Low-NOX liquid slag removal coal dust combustion apparatus possessing triple swirling flow wind

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103591578A (en) * 2012-08-16 2014-02-19 郑州奥通热力工程有限公司 Novel diffusion type pulverized coal burner for decomposing furnace
CN103851623B (en) * 2014-03-28 2017-03-15 李延新 A kind of combustor of pressure Hui Yan
CN105927977A (en) * 2016-06-28 2016-09-07 山东圣威新能源有限公司 Novel microbial coal desulfurization low-nitrogen turbine burner
CN108019740A (en) * 2017-11-20 2018-05-11 徐州工程学院 A kind of biomass fuel boiler device and its method of work
CN108050509B (en) * 2017-11-30 2019-11-08 谢丽萍 It is a kind of based on liquid ethanol-natural gas composite fuel combustion furnace and its method
CN108050510B (en) * 2017-11-30 2019-05-17 临沂兴源热力有限公司 A kind of combustion chamber air distribution system and its method based on hot oil boiler

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408548A (en) * 1979-04-17 1983-10-11 Jorg Schmalfeld Pulverized coal combustion method and apparatus
CN2050929U (en) * 1989-01-04 1990-01-10 东北工学院 Cyclone combustion furnace for coal power
JP2000356309A (en) * 1999-06-15 2000-12-26 Babcock Hitachi Kk Burner for powdered solid fuel and combustion device
JP2006057903A (en) * 2004-08-19 2006-03-02 Mitsubishi Heavy Ind Ltd Dust coal burner and boiler using it
CN101482265B (en) * 2009-02-24 2011-10-05 上海题桥纺织染纱有限公司 Low NOX dry ash extraction coal powder burner
CN101644431B (en) * 2009-08-31 2011-02-02 中国计量学院 Self-stabilizing three-stage air-distribution low-NOx pulverized coal burner
CN201772450U (en) * 2010-05-19 2011-03-23 上海题桥能源科技发展有限公司 Low-NOx solid-liquid deslagging double-whirl pulverized coal combustion device
CN101915420B (en) * 2010-05-19 2012-02-22 上海题桥能源科技发展有限公司 Low-NOx solid and liquid deslagging dual-swirl coal-dust combustion device
CN102305397A (en) * 2011-09-08 2012-01-04 上海题桥能源科技发展有限公司 Low-NOX (nitrogen oxides) slag-tap pulverized coal combustion device with triple rotational air

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661605A (en) * 2011-09-08 2012-09-12 上海题桥能源科技发展有限公司 Low-NOX liquid slag removal coal dust combustion apparatus possessing triple swirling flow wind

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